Question

根据这个：C# String splitting - breaking string up at second comma

我如何在javascript中执行相同操作？

Answer 1

var mystring = "test1, 1, anotherstring, 5, yetanother, 400";

var subString = mystring.slice(0,mystring.indexOf(',',mystring.indexOf(',')+1));

或更漂亮：

var index = mystring.indexOf(',',mystring.indexOf(',')+1);
var substring = mystring.slice(0,index);

Answer 2

使用此...

var str="test1, 1, anotherstring, 5, yetanother, 400"; 
var n=str.match("([^,]*,[^,]*)(?:, |$)");
console.log(n);

Answer 3

您也可以在没有正则表达式的情况下执行此操作：

var splitAtSecondComma = function (str) {
    var arr2 = str.split(",");
    var arr1 = arr2.splice(0,2);
    return [arr1.join(","), arr2.join(",")];
};

Answer 4

试试这个

function splitSecondComma(str) {
  var arr = str.split(","),
  l = arr.length,
  arr2 = [];
  for(i= 0; i < l; i= i+2) {
    arr2.push(arr[i] + " " + arr[i+1]);
  }
  return arr2
}

Javascript字符串拆分 - 在第二个逗号处打破字符串

4 个答案: